Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Joseph W. Ridings"'
Publikováno v:
The American Midland Naturalist. 171:165-171
American eel populations are declining and have recently become a species of interest by the United States Fish and Wildlife Service to list as a threatened species. However, the American eel population in the largest inland lotic waterway in North A
Autor:
Quinton E. Phelps, Jason W. Crites, Joseph W. Ridings, David P. Herzog, Robert A. Hrabik, Levi E. Solomon, David E. Ostendorf
Publikováno v:
Journal of Freshwater Ecology. 28:133-138
Length measurements of fishes are commonly used by fishery scientists because of their ease of collection and the profound insight into fish populations that they provide. Specifically, obtaining accurate fish lengths is imperative for obtaining accu
Autor:
S. Tripp, Robert A. Hrabik, Jason W. Crites, James E. Garvey, Quinton E. Phelps, D. R. Sechler, Joseph W. Ridings, David E. Ostendorf, David P. Herzog
Publikováno v:
Journal of Applied Ichthyology. 29:44-50
Summary The diet composition was quantified of year-0 Scaphirhynchus sturgeons during sampling years (2004–2008) from the Middle Mississippi River to evaluate trends in diet. River stage height varied among years and seasons. Water temperature diff
Autor:
Dawn R. Sechler, David P. Herzog, Sara J. Tripp, Quinton E. Phelps, Jason W. Crites, James E. Garvey, David E. Ostendorf, Robert A. Hrabik, Joseph W. Ridings
Publikováno v:
North American Journal of Fisheries Management. 32:24-31
The main stems of large rivers throughout the world have been highly modified with little consideration for effects on fishes that rely on these areas to complete their life histories. Particularly important is the ability of riverine habitats to pro
Autor:
Steven R. Schell, Joseph W. Ridings
Publikováno v:
Journal of Freshwater Ecology. 25:337-344
Some species of benthic fishes are rare, threatened or endangered and the tools that are used to sample them are not well developed. We added a substrate-disturbing brail to a small benthic trawl to improve catches of crevice-seeking and burrowing fi
Autor:
Sara J. Tripp, James E. Garvey, Jason W. Crites, Robert A. Hrabik, David E. Ostendorf, David P. Herzog, Joseph W. Ridings, Quinton E. Phelps
Publikováno v:
Transactions of the American Fisheries Society. 139:1060-1068
Habitat use by wild age-0 shovelnose sturgeon Scaphirhynchus platorynchus and pallid sturgeon S. albus was quantified by trawling macrohabitats (i.e., main channel, main-channel border, island, and artificial structures [e.g., wing dams]) in the midd
Autor:
David E. Ostendorf, Sara J. Tripp, Joseph W. Ridings, David P. Herzog, Robert A. Hrabik, William D. Hintz, Jason W. Crites, James E. Garvey, Quinton E. Phelps
Publikováno v:
North American Journal of Fisheries Management. 30:767-775
Several studies have investigated the demographics of shovelnose sturgeon Scaphirhynchus platorynchus and pallid sturgeon S. albus in the Mississippi River through assessment of adult populations; however, comparatively few studies have examined the
Autor:
Valerie A. Barko, Ronald C. Brooks, David E. Ostendorf, Sara J. Tripp, David P. Herzog, James E. Garvey, Quinton E. Phelps, Joseph W. Ridings, Robert E. Colombo, Robert A. Hrabik
Publikováno v:
North American Journal of Fisheries Management. 29:1487-1495
We evaluated the efficacy of three gears commonly used to sample shovelnose sturgeon Scaphirhynchus platorynchus, pallid sturgeon S. albus, and lake sturgeon Acipenser fulvescens in large rivers. We stratified habitats and randomly sampled sites with
Autor:
James E. Wallace, Joseph W. Ridings, Jeffrey G. Stewart, Valerie A. Barko, Donovan B. Henry, Annette F. Kelley, David P. Herzog
Publikováno v:
The American Midland Naturalist. 154:471-473
We document the first known occurrences of the Crystal Darter (Crystallaria asprella) in the middle Mississippi River (MMR). Two young-of-the-year specimens were collected, the first on 6 June 1998 at river mile (RM) 78 and the other on 9 June 2004 a